What Is a Circular Plane?

The circle C: xz + yz + Dx + Ey + F = is one of the important problems in the study of analytical geometry of dividing a plane by a circle. The sub-coordinate plane is the set of points on the circle and two areas inside and outside the circle. The points inside the circle satisfy the inequality xz + yz + Dx + and + FGO; the points outside the circle satisfy the inequality + + Dx + + F > O.

Circle dividing plane

Right!

Circle C: xz + yz + Dx + Ey + F = is one of the important problems in analytic geometry research of dliding a plane by a circle. The sub-coordinate plane is the set of points on the circle and two areas inside and outside the circle. The points inside the circle satisfy the inequality xz + yz + Dx + and + FGO; the points outside the circle satisfy the inequality + + Dx + + F > O.